Tube-protector.



No. 685,!76. Patented .00h22, I90I.

H. S. RUSS.

TUBE PnoTEcTon.

n f (Application ma Jan. 1a, 1901A (No Model.)

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' UNrTR STATES;

PATENT FFICE.

HENRY scHUYLRR Ross o1NEw YORK, N. Y.

TUBE-PROTECTOR'.

isrscrrrcnmrlv forming part of Letters :Patent No. 685,176, dated october 22, y1eo1.

Application filed January 16, 1901. Serial No. 43,538. (No model.) l

i710 wif-2,0m t may concern.-

Beit known that I, HENRY SoHU YLER Ross, a citizen of the United States, and a resident lof the city, county, and State of New York,

. zinc -secured electrically to the outer end of said holder.

In constructing this tube-protector it should be born in mind that it is desirable that the zinc ring or plate and the metal holder should have large surfaces in contact with each other thoroughly shielded against the attack of liquids or gases, and also that the holder when attached to the tube should have large surface contact with the surface of the tube, and also should easily be removed or attached to the tube. These requirements being keptin View, the zinc piece or ring may be secured to the outside or the inside of the holder and the holder may be made to slip into or over the mouth of the tube, so as to make contact with the internal surface or the external surface of the tube, as most convenient. The shape of the holder is preferably that of a split tube; but the shape is not material and the desired contact with the condenser-tube may be brought about by having the diameter of the holder such vasrto make a snug fit inside or outside the tube. I much prefer, however, to have the holder made of spring metal, so that the elasticity of the metal will maintain a constant contact with the condenser-tube when sprung into or around its mouth.

In the accompanying drawingsIhaveshown both ways of inserting the protector.

Figure 1 shows the protector inserted in the condenser-tube and provided with a zinc ring on the outside of the outer end. Fig. 2 shows a similar protector` sprung onto the tube instead of inserted therein. Fig. 3 shows the protector inserted inthe tube and with a zinc inside its outer end. Fig. 4 shows a similar protector sprung onto the tube.

Same letters indicate similar parts in the different figures.

P is the protector, preferably made of spring metal and bent so as to form a tube or partially-split tube, so as to adapt it for insertion Within or for springing around the end of the condenser-tube.

T represents the end or month of the condenser-tube of ordinary construction or other pipe to be protected.

Z is the zinc piece, in the form of a ring, plate, or otherwise, preferably of uniform thickness and adapted to be secured within or around the outer end of the protector P. A packing or gasket of heat-resisting nonconducting material-such, for instance, as Portland cement-c c is to be set into or around the zinc ring for the double purpose of shielding the contact-surfaces between the zinc and the metallic holder constituting the protector from attack by liquids or gases and of preventing short-circuiting or decomposition of the zinc everywhere except on its periphery. This gasket should therefore be extended as far as practicable to the outer periphery of the zinc. While desirable, this confining of the oxidation to the periphery of the zinc is not essential to the working of the protector, the special advantage of thus confining the corrosion being that as every oxidizing-point of the ezinc surface is thus equidistant from the metal holder the production and transmission of electricity will be uniform, and thereby the protecting power of the zinc will be greater than where the zinc corrodes unevenly.

As before stated, the contact-surfaces of the protector and the tube to be protected- IOS) ject into or around the tube to niaintain' the against a Surface near the mouth of a tube contact required to protect the special tube to be preserved from corrosion and provided Io in question. Tubes containing hot liquid with an annular piece of zinc secured eleciequire more protection than those containtrically to the outer end of` said holder.

5 ing cold. HENRY SCHUYLER ROSS'.

I claim-l Witnesses: I A tube -protector which eonsists'of a tu- W. P. PREBLE, Jr., bular metallic holder adapted to fit snugly RAE BATTERSLEY'. 

